Science in Sport (SiS) is a UK-based sports nutrition company trusted by elite athletes and teams worldwide, including INEOS Grenadiers and the English Premier League. Founded on evidence-based research, SiS develops products such as energy gels, hydration mixes, and recovery supplements designed to maximize performance, endurance, and recovery. With Informed-Sport certification across its range, SiS is known for quality, safety, and innovation in fueling athletes at every level.
